Plaster Bagworm larvae mainly feed on

• A. Tree leaves
• B. Spider webs
• C. Spider silk
• D. Wood fibers

Answer: (B)

Plaster bagworm larvae are not leaf-eaters or wood feeders. Their typical diet inside buildings is the silk and debris of spider webs. They live in a little cases made from silk and dust and nibble on the webbing spun by spiders, using it as their main food source. Because of this habit, spider webs are the best descriptor of what they primarily eat, more so than leaves or wood fibers. The reference to silk is related, since spider webs are made of silk, but the everyday feeding is on the webs themselves rather than plant material.